Design and general requirements for pressure seal envelopes: • the Mailing Item is produced from a single sheet of paper; • • inserts are not permitted; • DL design must be > 100gsm (3 ply); • C5 design must be > 150gsm (2 ply); • landscape or portrait are permitted; • Mailing Items must not be square; • perforations to be on both short sides; • the roulette tear strip must be on the back of the Letter; and • the longest edge from the Indicium must be a fold (bottom edge for landscape, left side for portrait). It is recommended that: • the Roulette Perforation specification is followed • the cut of the perforated strip perforations is set at 1.3mm – 2mm and with a bridge of ≥ 0.8mm; and • the cuts are rect ≤ angular in shape and have a width of ≤ 0.1mm. Perforated strip (long edge on reverse) It is recommended that: • only one roulette tear strip is on each Letter; • is the strip be die cut into the Letter; • is the strip be placed on the back of the Letter (i.e. the side which does not have the Delivery Address and Indicium) and should run parallel to the long edge; • is the strip be >10mm from the long edge of the Letter and should be >10mm wide; • the cut is set at <3.3mm and with a bridge of >0.6mm; Perforated strip (short edges)
• each cut is of uniform size; • each bridge is of uniform size; • the cuts are rectangular in shape and have a width of <0.1mm; • if the ‘long’ perforation extends into the ‘short’ side perforations, it is securely sealed i.e. the strips are totally sealed along their length; • the edge between the tear strip and the edge of the Letter is securely sealed along its entire length; • sealing adhesive is < 80 microns thick; • the glue does not run outside of or produce protruding mounds on the Mailing Item; • the glue is fully cured before you handover your mailing to us; and the tensile strength of the glue is ≥ 0.4N and fibre tear should be exhibited upon separation. Recommendations: • the Mailing Items may be presented in both landscape and portrait orientation; • the zip tie should be die cut into the Mailing Item; • the paper weight for the Mailing Item should be ≥ 150gsm; • the zip tie should always be placed on the back of the Mailing Items; • the zip tie may be positioned either horizontally or vertically, but the ‘tear’ direction of the tie is dependent upon the orientation of the Mailing Item. Figure 9 illustrates the back of the landscape and portrait oriented Mailing Items, the orientation, and ‘Tear’ directional requirements (the relative position of the Indicium on the front of the Mailing Item being illustrated). 12.5.3 Zip Tie Perforations
Figure 9 Perforation positioning and tear direction
101
Made with FlippingBook - Online catalogs